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Table 2 The prevalence and demographic data of children hospitalized with M. pneumoniae and C. pneumoniae infection

From: Epidemiology and associations with climatic conditions of Mycoplasma pneumoniae and Chlamydophila pneumoniae infections among Chinese children hospitalized with acute respiratory infections

  M. pneumoniae a C. pneumoniae b Co-infection c
Age n/total (%) n/total (%) n/total (%)
  <1 year 80/817 (9.8) 40/817 (4.9) 8/817 (0.1)
  1 to 5 years 75/616 (12.2) 30/616 (4.9) 5/616 (0.1)
  >5 years 44/165 (26.7) 11/165 (6.7) 2/165 (0.1)
  Total 199/1598 (12.5) 81/1598 (5.1) 15/1598 (0.1)
Demographics n (%) n (%) n (%)
  Total (male) 116 (58.3) 46 (56.8) 9 (60)
  Prematurity 12 (6.0) 4 (4.9) 1 (6.7)
  PICU Admission 1 (0.5) 0 (0) 0 (0)
  1. a χ2CMH = 35.90, P < 0.0001; b χ2CMH = 0.98, P = 0.614; c χ2CMH = 0.25, P = 0.881 compared among three age groups (Cochran-Mantel-Haenszel Statistic test). Data are presented as number (percentage) or mean ± SD.